Hi, I am doing triage of old bug and I hit this one [1]. Is it still happening?
1: <http://issues.guix.gnu.org/issue/22952> On Thu, 19 Nov 2020 at 19:39, "pelzflorian (Florian Pelz)" <pelzflor...@pelzflorian.de> wrote: > On Wed, Nov 18, 2020 at 10:14:32PM +0100, Marius Bakke wrote: >> To work around it locally, try adding: >> >> (simple-service 'gsd-polkit polkit-service-type >> (list gnome-settings-daemon)) >> >> to the (services ...) section of your system configuration. > > Thank you. You are correct for GDM. Adding this fixes changing the > backlight in GDM. Perhaps the GDM service should extend the polkit > service like that. It also does not conflict with adding a > gnome-service-type. > > MATE still complains. Without changing services, normally both on the > first log-in to MATE and on subsequent log-ins, when pressing the keys > to change the backlight, a message window still tells me that > /gnu/store/5kmmwc9q23lihpy3nv2knbvsr9qv2aln-mate-power-manager-1.24.2/sbin/mate-power-backlight-helper > needs to be authenticated as the super user; I need to enter the > password. > > Only with gnome-service-type and when not removing the GDM service, > after GDM (which uses the gsd), on the first log-in to the MATE > desktop, the backlight keys do nothing at all. When I try to log out, > it says Power Manager is not responding. When I force the log-out > despite the Power Manager, then log back in, I again get the message > each time I press the backlight keys. > > I added: > > (simple-service 'mate-power-polkit polkit-service-type > (list mate-power-manager)) > > It does not work. Especially, many things had been improved since 2020. :-) Let close it or provide more details for fixing it. ;-) Cheers, simon